Is Hornsey an Anglo Saxon place name?
According to the Cambridge Dictionary of Place-names “Hornsey is a woodland enclosure at or of Haering Haering is probably a ing derivitave of Old English haer “a rock, a heap of stones” cognate with Swed har “stony ground” and so meaning “stony place” Two forms of name Haering-haeg and Haeringes-haeg. The latter developed to become modern Hornsey and the former was revived for the name of Harringay House which then gave its name after 1880 to the district of Harringey in Hornsey” See also http://www.british-history.ac.uk/report.